Hoisting-tower.



matassa.

.FRANK `1i'. MCCUNE, ST. LOUIS, MSSOURI, ,ASSIGNGBQ BY DIRECT AND MESNEAS- SIGNMENTS, TO ACME H'OISTING MACHINERY COMPANY, OF ST.` LOUIS,MISSOURI,

' A. CORPORATON 0F MISSOURI. v

Specification of Letters Patent.

l Application tiled December 20, 1909. Serial No. 534,125.

Hors'rrNerownn` Patented Jan. 9,1912.

, ATO alwhom 'it may concern: l

Be itknown that I, FRANK R. MCCUNE, av

height may be varied, that is increuisedprI lcitizen of the UnitedStates, and resident of St. Louis, Missouri, have vinvented certain newand useful Improvements in Hoisting- Towers, of which the following is aspecification containinga full, clear, and exact description, referencebeing had tothe accompanying drawings, forming a part hereof.

My invention relates to improvements in hoisting towers especiallydesigned for use in connection with a concrete hoistingbucket andldistributing hopper, the` object 'of my invention being to construct atower cntirely of metalv in such manner'that its decreased,Iwithoutvarying the transverse A further ob3ect of .my vin-venti'onis tovconstruct an all-metallic tower, for the pur.

poses above mentioned, that is sectional and may be readily assembled ortaken apart without injury to the parts entering into its construction.

For the above purposes myinvention consists incertain novel' featuresof" constructionand arrangement of parts as will be hereinafter morefully described, pointed outin the claim and illustrated by theaecompanying drawings, in which: Y

Figure 1 is a side elevation offene of my improved towers showing the'hoisting bucket and distributing hopper therein; Fig.

2 is an end elevation of the tower; Fig. 3 '1s an enlarged plan of thetower, the bucket and hopper being removed; Fig. 4 is an enlarged,detail elevation partly in section showing one of the joints betweensections of the tower; Fig. 5 is asectional plan taken on the line 5-5of Fig..4;'Fig. `6 is a perspective illustrating the angle irons forjoining the corner posts; and Fig. 7 is a perspective, similar to Fig.6, and illustrates the relative positions ofthe ledgers and stay rodsrelative -to the angle irons for joining the uprights. y Y

Referring by numerals to the accompanying drawings: V1 designatesl.shaped uprights constituting the corner posts ofthe tower.

2 designates the central uprights which may be interchangeably 'used tofacilitate the erection of. the tower, it not being necessary to numberthe uprights as required when a special upright is designedor one. useonly. c L 'f 3 designates the side ledgers and 4 the end ledgers, all ofwhichare L-,shaped, the side ledgers being of one length and the endledgers of a lesser length.v lCoinciding perforations in the uprightsand ledgers permit the employment of bolts 5 for securing the ledgers tothe u rights. f y. 6 designates -shaped connecting plates secured to theoutside faces of the uprights and 7 designates angularplates secured tothe. inside faces of the uprights, thev plates 'lV being of less lengththan the plates 6 as shown in Figs. 6 and 7.' By this arrangement-.itisvobvious that when a second set of uprights are to be vsecured inposit-ionthe litting of the second upright to the first upright isgreatly facilltated. Each of the plates 6 is perforated adjacent each ofits ends to receive the bent Vends of the stay rods 8. The ends of thestay rods opposed to theirv bent ends are threaded and ,turn buckles 9are threaded thereto.

Removably secured to the uppermost ledgers 4 are the channel bars 10between which are pivotally mounted the pulleys 11,

` and removably secured to a pair of the ledgers 3 are the beams 12arranged to slipport the hopper 13.r Bearings are detachably secured toone ot' the ledgers 4 and a pulley 15 iscarried thereby.

1- designatesthe track rails, preferably of T-iron which are verticallydisposed in the tower and arranged in oppositely facing pairs as shownin Fig. 3. These track rails are substantially the same length as theuprights and are secured by bolts to the ledgers 3 as shown in Fig. 5. if 17 designates a tilting bucket arranged, to slide between one pair ofthe track rails 16 ,and be operated by a cable 18 vto which is attacheda'hoisting apparatus (not shown).

In setting up a tower, a section, the length of thel uprights, isassembled, as shown, with the lowermost ledgers in an inverted positionrelative to the vbalance of the ledgers and a concrete bed 19 is filledin around the lower ends of the uprights and said inverted ledger,thereby lirmly and securely holding the tower in position. The length ofthe up-v uilding story which, I have found to-be about twelve feet,thus, it is obvious that the sections of the tower are Asuiiicient toraise4 the tower one story at a time, and that after each' of the wallsof the building are completed, one story at a time, the rails 10andbeams 12 are 'tted to the added section oftower. l

In a tower built accordin to my invention, the operations of assemb ingand taking apart are greatly facilitated in that there is no fitting orcutting of parts required. Heretofore towers of this class have beenconstructed mostly of Wooden timbers requiring accurate fitting andcutting, which tlmbers, after being employed just a few times in theconstruction oftowers, would be unfit for use again by reason of thenumerous spike and bolt holes necessary in their structure.

While I have illustrated and described my improved tower as beingdouble, for the purposes of holding a hopper and a dumping bucket, it isobvious that, without departing from the spirit of my invention, thetrack rails 16, which are shown as seimaeee ...cured to the sideledgers, may be securedto.

tbeend ledgers and, when so secured, only a single pair ot tracks areused and that the intermediate cross ledgersmay he dispensed vcrossedadjustable stay rodconnecting di- -agonally opposite pairs of saidplates servu t ing the double function of trus'singthe, eni tirestructure and holding said ledgers in .place between the ends of theupriglits.

In testimony whereof, l have'sigaed'-myV name to this specification,in"pres|ncefo two subscribing witnesses.. .Y 4

l FRANK R. riccione'. Witnesses: u

E. E. LONGAN, E. L. Wannsee.

